Match All Items in Group 1 with Correct Options from Those

Multiple Choice

Match all items in Group 1 with correct options from those given in Group 2. List I List II**spaceP. Regular Expression
1) Syntax analysis**spaceQ. Push down automata
2) Code Generation**spaceR. Dataflow analysis
3) Lexical analysis**spaceS. Register allocation
4) Code optimization

A) P-4, Q-1, R-2, S-3
B) P-3, Q-1, R-4, S-2
C) P-3, Q-4, R-1, S-2
D) P-2, Q-1, R-4, S-3